CPI, U.S., 1860-1970, annual        
  27.0 
  27.0 
  30.0 
  37.0 
  48.0 
  47.0 
  44.0 
  43.0 
  41.0 
  40.0 
  38.0 
  37.0 
  37.0 
  37.0 
  35.0 
  33.0 
  32.0 
  32.0 
  30.0 
  29.0 
  30.0 
  30.0 
  30.0 
  29.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  28.0 
  26.0 
  25.0 
  25.0 
  25.0 
  25.0 
  25.0 
  25.0 
  25.0 
  26.0 
  27.0 
  27.0 
  27.0 
  28.0 
  29.0 
  28.0 
  28.0 
  29.0 
  29.0 
  30.0 
  29.7 
  30.1 
  30.4 
  32.7 
  38.4 
  45.1 
  51.8 
  60.0 
  53.6 
  50.2 
  51.1 
  51.2 
  52.5 
  53.0 
  52.0 
  51.3 
  51.3 
  50.0 
  45.6 
  40.9 
  38.8 
  40.1 
  41.1 
  41.5 
  43.0 
  42.2 
  41.6 
  42.0 
  44.1 
  48.8 
  51.8 
  52.7 
  53.9 
  58.5 
  66.9 
  72.1 
  71.4 
  72.1 
  77.8 
  79.5 
  80.1 
  80.5 
  80.2 
  81.4 
  84.3 
  86.6 
  87.3 
  88.7 
  89.6 
  90.6 
  91.7 
  92.9 
  94.5 
  97.2 
 100.0 
 104.2 
 109.8 
 116.3 
